There is new construction in Lyon Park. And then there is what sits behind 135 N Edgewood. Most homes in this neighborhood back to another fence line. This one backs to a private, Arlington-owned park and trail - protected green space that delivers the kind of view and privacy that simply cannot be bought or landscaped into existence. It is the rarest thing a home in an established neighborhood can offer: an open, wooded backdrop framing the entire back of the house. The house itself is the work of Griffin Head, a builder whose homes are unmistakably custom - soaring floor-to-ceiling windows, bespoke finishes, and a level of detail that reveals itself at every turn. From the moment you step through the front door, the home announces itself. A gracious entry foyer opens into a hallway that draws the eye all the way to the back, where walls of glass pour light across the entire main level and frame the trees beyond. This is not a house that reveals itself slowly. It shows you exactly what it is, right away. The main level is elegant and livable in equal measure. A dedicated office or flex room sits quietly off the entry. A powder room with floating vanity. A formal dining room anchored by a designer fixture & millwork wall details. Beyond, the home opens fully into a true chef's kitchen - gourmet appliances, custom cabinetry, large island, miele appliances & walk-in pantry that anchors the way this house actually works - flowing into an everyday dining area and a generous, light-filled family room. Off the living space, a screened porch perches above the yard, an elevated outdoor room that blurs the line between inside and out. On a warm evening, doors open and light fading over the park, there is nowhere else you would rather be. Upstairs, the primary suite is in a league of its own- a true retreat. Walls of windows bring in extraordinary light and tree-top views over the park, and the room opens to a spa-caliber bath: a freestanding soaking tub, a massive walk-in shower wrapped in custom tile, a double vanity & two generous closets. It feels like a destination rather than just a place to sleep. Down the hall, a beautifully appointed lounge anchors the floor taking you to three secondary bedrooms each with their own ensuite - finish selections that feel custom rather than off-the-shelf with unique tile work, fixtures chosen with a real point of view. The lower level is flooded with light and almost entirely at grade, it lives like a true extension of the home rather than a basement. A large family and entertaining space is anchored by a fireplace and a wet bar, opening out to an expansive deck taking you to your backyard & park beyond. Plus a large 5th bedroom, a full bath, & generous storage. It is the kind of bright, open lower level that makes you exhale every time you look out at the trees. A mudroom with built-in cubbies keeps daily life organized just where you need it. A BONUS space that is genuinely rare. Tucked privately away with its own separate entrance, a fully finished home office and studio sits quiet and apart from the rest of the house, with its own powder room. For anyone who works from home or runs a business, it offers the autonomy of an entirely separate suite without ever leaving the property. A long driveway with parking for multiple cars plus garage space. Lyon Park itself deserves a word. One of Arlington's most beloved and established neighborhoods - walkable, connected, and rich with the kind of community energy that makes people move here and never leave. Clarendon's celebrated dining, shopping, and nightlife are minutes away on foot. Metro and commuter routes make the broader DMV effortless. And that trail and park out back? It is the piece no other listing in the neighborhood can match. Custom construction with finishes that have to be experienced in person to be fully appreciated. There is new construction in Lyon Park. And then there is this.